he was going back to texas for his birthday. >> reporter: the fbi is taking the hoax seriously. since 2008, the justice department has charged 147 people in terrorist hoaxes. >> look at the resources that were expended, and the delays to the passengers. obviously, there would be severe charges. >> reporter: as for the victim, shell, there was concern about his background. so police did a background check. apparently, he had outstanding warrants. so, when he arrived in dallas, he was arrested by police. george, some birthday. >> boy, sure is. thanks very much. >>> overseas to prince harry. he learned the hard way that what happens in las vegas doesn't always stay there. but he's back to work now. we're just learning that he arrived overnight in afghanistan for a second tour of duty. and lama hasan with the latest. good morning, lama. >> reporter: good morning, george. abc news can confirm that prince harry quietly slipped back into afghanistan overnight, to serve as a pilot with the british army in helmand province, one of the most dangerous places on earth. which may help explai